Hi stranger! Signing up for MypetMD is easy, free and puts the most relevant content at your fingertips.

Get Instant Access To

  • 24/7 alerts for pet-related recalls

  • Your own library of articles, blogs, and favorite pet names

  • Tools designed to keep your pets happy and healthy

or Connect with Facebook

By joining petMD, you agree to the Privacy Policy.

Q. My dog is 13 and has lump on his back the vet said to watch it and it seems to be getting bigger and it is not movable like before. Weakness in legs

Answered By

A. the weakness of the legs may or may not be related to the lump (common symptom in Labradors this age but could also be a tumor that spread to the spine or hips), if the tumor is getting bigger and isn't movable anymore this is almost always an indication to remove it surgically as soon as possible.

Answered By

A. If the lump is growing it needs to be re-examined. I would highly recommend having it removed and biopsied, if possible. The weakness is likely due to an orthopedic issue like arthritis, especially in an older dog. Please have him seen by a veterinarian.

DISCLAIMER: The answers in Ask petMD are meant to provide entertainment and education. They should not take the place of a vet visit. Please see our Terms and Conditions.


Ask an expert about your unique situation now FOR FREE!

IMPORTANT: The opinions expressed in Ask petMD content area are solely those of the User, who may or may not have medical or scientific training. Our Ask petMD experts include veterinarians, vet techs, veterinary students, pet trainers, pet behaviorists and pet nutritionists. These opinions do not represent the opinions of petMD. User-generated content areas are not reviewed by a petMD veterinarian or any member of the petMD editorial staff for accuracy, balance, objectivity, timeliness, or any other reason except for compliance with our Terms and Conditions. petMD does not endorse any specific product, service, or treatment. Do not consider petMD user-generated content as medical advice. Never delay or disregard seeking professional medical advice from your veterinarian or other qualified healthcare provider because of something you have read on petMD.